Air-jet lift.



` T. j, CRUMPTUN.

AIR JET LIFT. n APPucATioN FILED JuLY 7. 1914.

. llamentedJune6,1916.

Attornys y THB IOLUMBIA mman?" Q0., VASHMTGN, D. n,-

UNTED `STATES OFFG.

THOMAS J'. CRUMPTON, 0F COALINGA, CALIFORNIA.

Ain-infr Lrrr.

Specification ofjLetters Patent.

`Patented June 6, 1916.

Application led July 7, 1914. Serial No. 849,542. i

of novel and improved construction, whereby its utility is enhanced.

Another object of the invention is to provide a check val-ve assembled with the ejector in a unique manner, for supporting the column of water or other liquid when 1 the device is idle.

Withy the foregoing and other objects in view which will appear as the description proceeds, the invention resides m the combination and arrangement of parts andin the details of construction hereinafter described and claimed, it being understood` that changes in the precise embodiment of the invention herein disclosed, can be made within the vscope of what is claimed, without departing tion.. In the drawings accompanying this specifrom the spirit of the inveniication and forming .a vpart thereof, the

preferred embodiment of my invention is illustrated. f

In said drawings z-Figure 1 is a viewfin. 'Y

longitudinal section of my improved air lift pump. Fig. 2 is a bottom view thereof. In carrying out the present invention,

thereis provided an upright cylindrical cas- 'ing or shell 4, which is'provided with a longitudinal eccentric bore 5 of large diameter, and with a second or supplemental longitudinal eccentric bore 6 of relative small diameter and disposed at the thick side of the casing or shell 4 formed by the eccentric bore 5. The upper end of the bore 5 is threaded, as at 7, and the said bore 5 isprovided intermediate its ends with a. frustoconical portion S, tliebore 5 being of smaller diameter above the portion 8, than below the same. The casing 4 is further provided with an inner annular ledge or rib 9 at the lower end of the bore 5, for providing a contracted inlet opening 10 having a ared mouth 11. f

An inspirator sleeve or tube 12 is fitted snugly in that portion of the bore 5 above the portion 8 thereof, and threadedly engages the internal screw threads 7 of the casing 4. The upper'portion of the sleeve 12 projects or protrudes above the casing 4, and'is provided with internal screw threads w13 for the attachment of the sleeve 12 to the -lower endof the well casing or tubing. l Thus, the sleeve 12 serves tb Vcouple the casing. 4L to the lower end of the well casing (not shown), whereby the parts may -be readily assembled and separated.

the said sleeve to an intermediate point, to thereby provide a restricted portion between the ends ofthe sleeve 12, 'and the lower fiared portion of the bore ofthe sleeve 12 is iiush vwith the portion k8 of the bore 5.

A spider-shaped valverseat 111 is threaded into .the opening 10, and its hub vis provided with `an apertureV 15 through which an upstanding or upwardly projecting air or fluid nozzle 16 passes. The nozzle 16 is arranged axially within the bore 5, and the lower .protruding end of the 4nozzle 16 is connected'by means of the pipe sections'16" to the lower end of the supplemental bore 6, as at 17, whereby an air, steam or pressure with thenozzle 16. The nozzle 16 includes the body portion 17 of uniform diameter passing through the aperture 15, and the tapered tip 18 which projects into the lower portion of the sleeve 12and which terminates immediately within the restricted or vcontracted portion of the sleeve 12 intermediate the tapered portions of the bore of the sleeve 12. j v

The tip 18 provides a lower Vshoulder 19, and a check valve 20 is slidable upon the body portion 17of the nozzle 16 tonormally rest upon the valve seat 14 for closing the passages therethrough. wire spring 21 is disposed between the valve 20 and the shoulder 19 for normally seating the valve, and for ena-bling the valve to unseat after the suction'within the bore 5 has reached a predetermined degree. The valve 20 in being normally closed, will support the column of water. or other liquid thereabove within the well casing, when the. device is idle, the valve 20, which is of disk form is of smaller diameter than the large portion of the bore 5V below the frustoconical or tapered portion 8, in order that when the valve 20 is unseated, the water, oil,

The bore of the vsleeve 12'is tapered from the lends of Huid pipe attached to the upper end of the bore 6, will be brought into communication A spiral i iio or other liquid may readily pass the periph ery or margin of the valve in flowing up wardly.

In operation, supposing the upper end of the inspirator sleeve l2 be attached to the lower end of a well casing or pipe, when the well casing or pipe is lowered into the Artesian or deep well, until `the ejector is lowered or immersed in the oil, water, or other liquid which is to be elevated, the air, steam or other pressure fluid is supplied yto the bore 6 by a suitable pipe (not shown) and the air or other pressure fluid in being discharged from the nozzle lat the restricted portion of the sleeve l2, will create a suction through the lower portion of the sleeve l2 and the bore 5. Thus, the tendency to create a vacuuin in the lower portion of the sleeve 12 and bore will lift the liquid into the ejector, the valve being automatically unseated, and the liquid will be drawn upwardly into the sleeve 12, and in passing the restricted portion of the sleevel 12 will be forcibly raised or elevated into and through the well casing or pipe. It is to be noted that the lower portion of the sleeve l2 is. tapered to enable the liquid to `be drawn upwardly properly by the discharge of the pressure fluid while the upper portion of the sleeve 12 is tapered to enable the liquid to be properly forced upwardly. It is thus desirable to discharge the pressure iiuid at the contracted portion or zone of the inspirator sleeve, to increase the efciency of the ejector, and to reduce any reacting' or counteracting eddies to a Having thus fully described my invention, what I claim is An ejector embodying a vertical cylindrical casing having a longitudinal eccentric bore of relatively large diameter extendingv from end to end, and a Second longitudinal eccentric bore at the thick side of ythe casing and of relatively small diameter, a relatively long inspirator sleeve fitted snugly in:

at the lower end of the first mentioned boreY with an inner annular rib forming an linlet opening having a tapered mouth, a spidershaped valve seat threaded withinsaid rib,

a nozzle projecting upwardly through the hub oit said valve seat and having its tip disposed within said constricted portion of the inspirator sleeve, said nozzle having a downwardly facing shoulder above saidl valve seat, a valve disk slidable upon said nozzle .i

under said shoulder and seatable upon the valve seat, a spiral spring having its largerV end seated upon said valve disk and havingA its smaller end seated upwardly against said shoulder, and a pipe connecting the lowery end of said nozzleandthelower end of the second mentioned bore.

In testimony that I claim the :foregoing as myown, I have hereto aiixed my signature in the presence of two witnesses..

THOMAS J. CRUMPTON'.

Witnesses:

O. D. CANADAY, S.' T. ERNST.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. 1GB 

